Are bitcoin losses tax deductible?

Good afternoon, esteemed financial professionals. I'm curious to know, regarding cryptocurrency investments specifically in bitcoin, whether or not any losses incurred during market fluctuations or otherwise are tax deductible. I understand that traditional investments such as stocks and bonds often allow for such deductions, but the realm of cryptocurrency is still relatively new and unregulated in many aspects. Would you kindly elaborate on the current stance of taxation authorities with respect to bitcoin losses and their potential deductibility? Thank you for your time and consideration in this matter.